I've fallen behind on Double Fine's developer-led Let's Play series Devs Play, but I can't resist jumping back in now, order be damned, for the episode about Doom featuring John Romero.

The id Software co-founder is joined by Double Fine's own JP LeBreton (BioShock, Spacebase DF-9), who we're introduced to in this first video. If it's the iconic E1M1: Hanger you're after, skip straight to part two. Lots of fascinating level-design talk throughout. Some Daikatana, too.